Answer:
Explanation:
The Respiratory System
The thoracic cage, sometimes called the rib cage, is a bony structure that is narrower at the top and wider at the base. It is held in place by the thoracic vertebrae of the spine in the center of the back and by the sternum in the center of the anterior aspect of the body. The first seven ribs attach directly to the sternum and are called the true ribs. Ribs 8, 9, and 10 fasten one to another, forming the false ribs, and ribs 11 and 12 are the “floating” ribs, or half ribs, because their only attachment is to the thoracic vertebrae. At the base or floor of the rib cage is the diaphragm, a musculotendinous membrane that separates the thoracic cavity and the abdominal cavity (Figure 46-1). The respiratory system is divided into two anatomic regions, the upper respiratory tract and the lower respiratory tract.
Upper Respiratory Tract
The upper respiratory tract, which transports air from the atmosphere to the lungs, includes the nose, pharynx (throat), and larynx (Figure 46-2). As air enters the nasal cavity, it is cleaned by the cilia, warmed by capillary blood vessels, and moistened by mucous membranes. The paranasal sinuses, hollow cavities that also are lined with mucous cells and cilia, open into the nasal cavity and help warm and moisten inhaled air. The filtered, warmed, and moistened air moves past the tonsils, which have an immunity function and help defend the body from potential pathogens, and through the pharynx. As the air continues toward the lungs, it passes through the larynx. The opening into the larynx is protected by a moveable piece of cartilage, the epiglottis. The larynx, or voice box, is made up of vocal cords, which vibrate when air is exhaled, creating the sound of the voice. Once the air passes through the larynx, it enters the lower respiratory tract.
Answer:
If you don't get enough exercise, you may be at higher risk for disease and a shortened lifespan. Leading a sedentary lifestyle has been linked with diabetes, cardiovascular disease, and all-cause mortality. It isn't just about weight and sleep, exercise may actually be question of life and death in the long-run. It doesn't have to happen
Explanation:
A. <span>Aerobic activity is the answer </span>
Answer: The correct answer is B; E. Coli.
Explanation:
E. Coli can be prevented by cooking meat thoroughly. This bacteria can be killed if the internal temperature reaches 160 degrees fahrenheit. If a person is cooking leafy veggies, it is hard to get a correct temp, however, if the leaves are wilted, the bacteria should be gone. This bacteria can also be found in some water sources such as well water.
To help prevent the spread of this bacteria, never eat uncooked meat,wash your hands with soap and hot water, and clean surfaces after having raw meat on counters, etc.
Answer:
B.Immune Response
Explanation: The immune system is the body's defense and response system to disease and illness.
